sinchronization between Zoho Inventory and Zoho CRM

sinchronization between Zoho Inventory and Zoho CRM

Hi, 

I have just setup Zoho Inventory and I currently use Zoho CRM, and I will appreciate some answers since I cannot find them in the help documentation, which is very limited.

Where should I manage my Purchase Orders and Sales Orders? In Zoho Inventory or in Zoho CRM? Both applications have the modules. Do they synchronize?

Do inventory levels in Zoho CRM and Zoho Inventory get synchronized? or will I get different inventory levels in Zoho CRM and Zoho Inventory depending on where I generate my PO and SO?

Thanks very much for the help!